#003acd

Color #003acd

A vivid, highly saturated medium blue.

Closest named color Dark Blue #00008b · ΔE 21.44 Nearest Tailwind class blue-800 #193cb8 · ΔE 2.7

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#003acd

RGB

rgb(0, 58, 205)

HSL

hsl(223, 100%, 40.2%)

HSV / HSB

hsv(223, 100%, 80.4%)

CMYK

cmyk(100%, 71.7%, 0%, 19.6%)

LAB

lab(32.77, 44.24, -78.52)

LCH

lch(32.77, 90.13, 299.4)

OKLCH

oklch(43.8%, 0.2294, 263.37)

HWB

hwb(223, 0%, 19.6%)

Harmony colors

Complementary

#cd9300

Analogous

#00a1cd

#003acd

#2c00cd

Triadic

#003acd

#cd003a

#3acd00

Split-complementary

#003acd

#cd2c00

#a1cd00

Tetradic

#003acd

#9300cd

#cd9300

#3acd00

Square

#003acd

#cd00a1

#cd9300

#00cd2c

Shades

Color #003acd mixed toward black.

#0030ab

#002789

#001d67

#001344

#000a22

Tints

Color #003acd mixed toward white.

#0149ff

#346dff

#6792ff

#99b6ff

#ccdbff

Tones

Color #003acd mixed toward gray.

#1141bc

#2249ab

#33509a

#445889

#555f78

Accessibility

Aa White text on this color

8.44:1

Aa Black text on this color

2.49:1

White text reads better on this background (8.44:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2525b7 · ΔE 6

Deuteranopia

#221eb1 · ΔE 7.6

Tritanopia

#07a39e · ΔE 46.2

Achromatopsia

#4d4d4d · ΔE 29.8

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #003acd;

Tailwind (arbitrary value)

bg-[#003acd]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#003acd (#003acd) is rgb(0, 58, 205) in RGB.

No, #003acd is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #003acd, or check how it holds up for accessibility.

Generate a palette → Check contrast